8 kg of tomatoes cost ₹ 84. What is the cost of 14 kg of tomatoes?

Cost of 8 kg tomatoes = ₹ 84.

Cost of 1 kg tomato = ₹ $\Big(\dfrac{84}{8}\Big) \quad \text{[Less tomatoes, Less cost]}$

Cost of 14 kg tomatoes = ₹ $\Big(\dfrac{84}{8} \times 14\Big) \quad \text{[More tomatoes, More cost]}$

= ₹ $\Big(\dfrac{21}{2} \times 14\Big)$

= ₹ $\Big(\dfrac{294}{2}\Big)$

= ₹ 147

Hence, the cost of 14 kg of tomatoes is ₹ 147.